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Get JSF managed bean by name in any Servlet related class
...= (Bean) request.getSession().getAttribute("beanName");
and @ManagedBean @ApplicationScoped by:
Bean bean = (Bean) getServletContext().getAttribute("beanName");
Note that this prerequires that the bean is already autocreated by JSF beforehand. Else these will return null. You'd then need to manual...
Execute method on startup in Spring
Is there any Spring 3 feature to execute some methods when the application starts for the first time? I know that I can do the trick of setting a method with @Scheduled annotation and it executes just after the startup, but then it will execute periodically.
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How to check if a file exists in Documents folder?
I have an application with In-App Purchase, that when the user buy something, download one html file into the Documents folder of my app.
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How do I create a custom iOS view class and instantiate multiple copies of it (in IB)?
I am currently making an app that will have multiple timers, which are basically all the same.
4 Answers
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Error while installing json gem 'mkmf.rb can't find header files for ruby'
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For Xcode 11 on macOS 10.14, this can happen even after installing Xcode and installing command-line tools and accepting the license with
sudo xcode-select --install
sudo xcodebuild -license accept
The issue is that Xcode 11 ships the macOS 10.15 SDK which in...
Find substring in the string in TWIG
...possible to use this inside an if statement?
– TeaCupApp
Oct 28 '12 at 0:36
3
Yes, indeed, you ca...
Should accessing SharedPreferences be done off the UI Thread?
...note: (in lazy bullet form)
if this is the worst of your problems, your app's probably in a good spot. :) Writes are generally slower than reads, though, so be sure you're using SharedPreferenced$Editor.apply() instead of commit(). apply() is new in GB and async (but always safe, careful of li...
Ternary operator in AngularJS templates
... set to true inside an ng-repeat for the first element, so the above would apply class 'myClass1' and 'myClass2' only the first time through the loop.
With ng-class there is an easier way though: ng-class takes an expression that must evaluate to one of the following:
a string of space-delimited...
How Do I Take a Screen Shot of a UIView?
I am wondering how my iPhone app can take a screen shot of a specific UIView as a UIImage .
15 Answers
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How to establish a connection pool in JDBC?
...onfigured and usable pooled DataSource
But if you are running inside an application server, I would recommend to use the built-in connection pool it provides. In that case, you'll need to configure it (refer to the documentation of your application server) and to retrieve a DataSource via JNDI:
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